Question 1.1

Question

Is the development sited and designed in accordance with the sequential test set out in PPS 25?

1. Site is within Zone 1 on Environment Agency floodmap. For sites over 1ha: Flood Risk Assessment produced as per PPS25, vulnerability to flooding from sources other than river and sea considered, and the impact of hard surfaces and surface water run-off considered. Layout and design of development to reduce risk of flooding and impact of flooding, and mitigation measures to reduce the potential of the development to increase flooding elsewhere.
2. For Zone 2 sites: No suitable Zone 1 sites available. No “highly vulnerable” uses within the development application. Flood Risk Assessment produced as per PPS25, layout and design of development to reduce risk of flooding and impact of flooding, and mitigation measures to reduce the potential of the development to increase flooding elsewhere. Design measures incorporated to reduce the depth and speed of flooding to adjacent and surrounding properties. Demonstration that residual risks of flooding (after existing and proposed flood management and mitigation measures are taken into account) are acceptable. Management and mitigation risks may include flood defences, flood resistent and resiliant design, escape/evacuation, flood warning and emergency planning, robust infrastructure and utility provision.
3. For Zone 3a sites: No suitable Zone 1 or Zone 2 sites available. Only “less vulnerable” or “water compatible” uses within the development proposal. Flood Risk Assessment produced as per PPS25, layout and design of development to reduce risk of flooding and impact of flooding, and mitigation measures to reduce the potential of the development to increase flooding elsewhere. Design measures incorporated to reduce the depth and speed of flooding to adjacent and surrounding properties. Demonstration that residual risks of flooding (after existing and proposed flood management and mitigation measures are taken into account) are acceptable. Management and mitigation risks may include flood defences, flood resistant and resilient design, escape/evacuation, flood warning and emergency planning, robust infrastructure and utility provision.
4. For Zone 2 sites: No suitable Zone 1 sites available. Development proposal includes “highly vulnerable” uses. Proposed development passes the Exception Test set out in PPS 25, and meets the requirements of B above.
5. For Zone 3a sites: No suitable Zone 1 or 2 sites available. Development includes “more vulnerable” uses (but not “highly vulnerable” uses). Proposed development passes the Exception Test set out in PPS 25, and meets the requirements of C above.

NB: Essential infrastructure developments of the type acceptable in Zone 3b is unlikely to be covered by this checklist.